Stupid people who talk too long and too hard about subjects that they clearly have no knowledge of, usually whilst trying to be ironic and humourous into the bargain.
Anyone who appears on shows such BBCs 'I love 19xx' or Channel4s '100 greatest ...' .
The grimaceyour face makes when you have something stuck in your teeth and you try to get it out with your tongue
1:"You look a bit opidiscipt in the photo, did you getsomething good for lunch"
2:"Don't you just hate having braces? I always end up looking opidisciptum"